2 # I, Ian Kelling, follow the GNU license recommendations at
3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
4 # recommend that small programs, < 300 lines, be licensed under the
5 # Apache License 2.0. This file contains or is part of one or more small
6 # programs. If a small program grows beyond 300 lines, I plan to switch
9 # Copyright 2024 Ian Kelling
11 # Licensed under the Apache License, Version 2.0 (the "License");
12 # you may not use this file except in compliance with the License.
13 # You may obtain a copy of the License at
15 # http://www.apache.org/licenses/LICENSE-2.0
17 # Unless required by applicable law or agreed to in writing, software
18 # distributed under the License is distributed on an "AS IS" BASIS,
19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 # See the License for the specific language governing permissions and
21 # limitations under the License.
24 # I somehow ended up with an empty crypttab, and had to rescue my
25 # system. So, lets check for some basic validity.
27 if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
28 shopt -s inherit_errexit
2>/dev
/null ||
: # ignore fail in bash < 4.4
30 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" exit status: $?, PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
42 metric_dir
=/var
/lib
/prometheus
/node-exporter
43 mnt
="$(findmnt -fn -o SOURCE /)"
45 /dev
/mapper
/crypt_dev_
*)
46 tmp
=${mnt#/dev/mapper/}
48 if ! grep -qF $dev /etc
/crypttab
; then
50 if [[ -e $metric_dir ]]; then
51 echo "crypttab_check 1" > $metric_dir/crypttab_check.prom
57 if [[ -e $metric_dir ]]; then
58 echo "crypttab_check 0" > $metric_dir/crypttab_check.prom